tree 04b1d9d8936727a5b7dec4ee912b5509853cfec6
parent a72391e42f0a13116995045b3d492d660f96697d
author Christoph Lameter <clameter@sgi.com> 1144977833 -0700
committer Tony Luck <tony.luck@intel.com> 1145642260 -0700

[IA64] Setup an IA64 specific reclaim distance

RECLAIM_DISTANCE is checked on bootup against the SLIT table distances.
Zone reclaim is important for system that have higher latencies but not for
systems that have multiple nodes on one motherboard and therefore low latencies.

We found that on motherboard latencies are typically 1 to 1.4 of local memory
access speed whereas multinode systems which benefit from zone reclaim have
usually more than 1.5 times the latency of a local access.

Set the reclaim distance for IA64 to 1.5 times.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>